Dahlia plant named &#39;hgd-92-1&#39;

ABSTRACT

A new and distinct cultivar of Dahlia plant named ‘HGD92-1’ characterized by its vigorous growth, compact plants, abundance of flowers and fast response. The flowers have contrasting colors between ray and disc florets.

BACKGROUND OF THE INVENTION

[0001] The present invention relates to a new and distinct variety ofDahlia hybrida (DAHLIA vanabilis) known by the varietal denomination‘HGD92-1’. The female parent of ‘HGD92-1’ is a selection from aproprietary breeding collection known as ‘DA-92’ and also the maleparent is a selection from a proprietary breeding collection known as‘DA-92’.

[0002] The new cultivar ‘HGD92-1’ is a product of a planned breedingprogram and was selected from the progeny of the stated cross made onSeptember, 1998 by the Inventor at HEM GENETICS, Hemmerbuurt 98, 1607 LCHem, the Netherlands. ‘HDG92-1’ was first asexually propagated on May,1, 1999 by the Inventor at HEM GENETICS, Hemmerbuurt 98, 1607 LC Hem,the Netherlands.

[0003] The new variety is a dahlia plant useful for growing outdoors andunder glass which produces attractive contrasting red and white flowers.Among the traits possessed by the new variety which in combinationdistinguish it from other varieties known to the inventor are itsattractive flowers with contrasting flower colors, vigorous growth,compact plants and fast response/early flowering.

[0004] Asexual reproduction by cuttings of the new variety in TheNetherlands has demonstrated that the combination of characteristics asdescribed herein for ‘HGD92-1’ are firmly fixed and are retained throughsuccessive generations of asexual reproduction.

BRIEF DESCRIPTION OF THE INVENTION

[0005] ‘HGD92-1’ is particularly characterized by the following:

[0006] 1. Compact growing plants;

[0007] 2. Fast flower responses;

[0008] 3. Vigorous growth;

[0009] Contrasting red/white flower color; and

[0010] 5. Abundance of flowers

[0011] Perhaps the closest comparison cultivar is ESTIVO. ‘HGD92-1’ hasnot been tested under all available environmental conditions and thephenotype may vary with variations in environmental conditions such astemperature, light intensity, day length and humidity, without a changein genotype of the plant.

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying color photographic drawings show typicalcharacteristics of ‘HGD92-1’. Sheet 1 is a top view of a plant. Sheet 2is a close up of a flower.

DETAILED BOTANICAL DESCRIPTION

[0013] The following observations, measurements and values describeplants grown under commercial conditions. All color references aremeasured against The Royal Horticultural Society (RHS) Colour Chart.Colors are approximate as color depends on horticultural practices suchas light level and treatment rate, among others, without however anyvariance in genotype.

[0014] Parentage:

[0015]Female parent.—DA-92, a selection from a proprietary breedingcollection.

[0016]Male parent.—DA-92, a selection from a proprietary breedingcollection.

[0017] Plant:

[0018]Form.—globose, erected.

[0019]Height.—40 cm. Depending on cultivation conditions.

[0020]Branching characteristics.—normal.

[0021]Natural flowering season.—early May until mid November in moderatesea climate

[0022]conditions in the northern hemisphere.

[0023]Hardiness.—good.

[0024]Disease resistance.—no data available.

[0025]Flower stem.—Length: 10-12 cm. depending on cultivation conditionsColor: dark green RHS 146-A.

[0026]Foliage.—Quantity: normal Leaf Arrangement: in pairs Shape ofleaf: oval, medium serrated; 100 mm. in length and 70 mm. width;Internode: 120 mm. depending on cultivation conditions Leaf upper side:smooth Leaf underside: smooth with veins Color: Leaf upper side: darkgreen RHS 137-A Leaf underside: dark green RHS 137-A Venation:irregular, staggering Petiole length: 50-60 mm. depending on cultivationconditions Stipules: none Stem color: dark green RHS 146-A

[0027]Sepals (1).—Number: 5 Length: 14 mm. depending on cultivationconditions Width: 7 mm. depending on cultivation conditions Color: darkgreen RHS 146-A

[0028]Second sepals (2).—Shape: Oval Color: yellow-green RHS 151-A

[0029] Bud:

[0030]Form.—rounded.

[0031]Size.—15 mm. depending on cultivation conditions.

[0032]Color of ray florets.—yellow-green RHS 151-A.

[0033] Flower:

[0034]Inflorescence form.—half double.

[0035]Bloom form.—rounded.

[0036]Bloom diameter.—6-7 cm. depending on cultivation conditions.

[0037]Lasting quality.—not relevant.

[0038]Ray florets.—Inner ray florets (3): Upper surface: oval; 30 mm;RHS 187-A Outer ray florets attachment (4): Upper surface: oval; 20 mm;RHS 187-B and 155-A

[0039]Disc florets (5).—Length: 10 mm. depending on cultivationconditions Shape: rounded to elongated Color: Yellow-orange RHS 21-AFragrance: none Reproductive organs: Anthers: 2×5 mm. yellow-orange RHS21-A Pollen: yellow-orange RHS 21-A Pistils: yellow RHS 12-A Characterof ovaries: single seed, inferior

I claim:
 1. A new and distinct cultivar of Dahlia plant named ‘HGD92-1’,as described and illustrated.